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by dmurray 494 days ago
That's nothing! They determined that one valley formed 3.8 billion years ago, and the other one, 3.8 billion years plus or minus 10 minutes.
1 comments

> That's nothing! They determined that one valley formed 3.8 billion years ago, and the other one, 3.8 billion years plus or minus 10 minutes.

Now that's what i call precision. How did they measured it ? With a pendulum ? /s